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5776 vfork and getwd should not be exposed under XPG7

@@ -99,10 +99,15 @@
 func |  getlogin_r                                              |\
         int                                                     |\
         char *; size_t                                          |\
         unistd.h | -POSIX+ -SUS+ +POSIX-1995+ SUSv2+
 
+func |  getwd                                                   |\
+        char *                                                  |\
+        char *                                                  |\
+        unistd.h | -ALL SUS+ -SUSv4+
+
 func |  lchown                                                  |\
         int                                                     |\
         const char *; uid_t; gid_t                              |\
         unistd.h | -POSIX+ SUS+
 

@@ -132,9 +137,24 @@
 func |  ttyname_r                                               |\
         int                                                     |\
         int; char *; size_t                                     |\
         unistd.h | -POSIX+ -SUS+ +POSIX-1995+ SUSv2+
 
+func |  ualarm                                                  |\
+        int                                                     |\
+        useconds_t; useconds_t                                          |\
+        unistd.h | -ALL SUS+ -SUSv4+
+
 func |  unlink                                                  |\
         int                                                     |\
         const char *                                            |\
         unistd.h | POSIX+ XPG3+
+
+func |  usleep                                                  |\
+        int                                                     |\
+        useconds_t                                              |\
+        unistd.h | -ALL SUS+ -SUSv4+
+
+func |  vfork                                                   |\
+        pid_t                                                   |\
+        void                                                    |\
+        unistd.h | -ALL SUS+ -SUSv4+